Winter grafting

[danskibsted]

Very nice work! Keep us updated!
Dan

[Carlo & Daniele]

thank a lot Dan!
well this is the problem we met with peresk, that's why we are using mostly selenicereus during winter, but we want to solve this problem.



as you can see the cuts are dried even after one hour.
so we leave them cicatrize and will do the grafts next week, what do you think?

[Karlet]

Hello, sometimes I had your same problem, and I redid the grafting ten days later with excellent results. When the persk. have too much sap, I fixed the scion with the Parafilm and the problem is solved.

[Fran64]

Hi Dan, Ariocarpus interesting, thanks for showing them.
How much ariocarpus tissue on the stock, 2 - 3 m/m, more ?

Hi Carlo & Daniele , thanks for your information, that is? dry environment, effect lamps or vegetative stop Pereskiopsis.
You know the cause?

Best regards.

[Carlo & Daniele]

maybe it's because under lamps they grow faster than in summer and tissues are more soft. When you cut they lose a part of liquid very quicky. what do you think?

[danskibsted]

That seem very strange to me. After you have done the graft, how long do you keep them under high humidity? If I place my grafts under the lights too soon, I will get the same results... But if your method work in the summertime, it must be something else. 
Dan

[danskibsted]

Hi Dan, Ariocarpus interesting, thanks for showing them.
How much ariocarpus tissue on the stock, 2 - 3 m/m, more ?

I leave 80% of the seedling. I guess that is around 1-4mm when they are a few weeks old.
Dan

[Carlo & Daniele]

That seem very strange to me. After you have done the graft, how long do you keep them under high humidity? If I place my grafts under the lights too soon, I will get the same results... But if your method work in the summertime, it must be something else. 
Dan

hello Dan, we never met this problem in summertime (or autumn when we make some grafts for winter). We left peresk in a box with high humidity for 3-5 days in the greenhouse. Doing that in winter and keeping the peresk in a close box with 20°C they produce liquid that push the scion away (even if we did not water the stocks for 3-4 days before doing the graft). So we tried doing the grafts and put them immediately under the light maintaining humid the environment and it worked quite well.
We will try to graft on these peresk with cut apex next week and keep you updated.

[Simon]

I don't know if this is the cause but I have found that when I do grafts and keep them humid while the atmospheric pressure is dropping because of a low pressure system approaching then they will produce a flow of sap like what you mention. This happens both in winter or summer especially when there is a sudden change from fine warm weather to cool raining weather. It is the only time I have seen pereskiopsis do this. So now I keep an eye on the long range weather forecast when I am planning to graft pereskiopsis and avoid doing it when a change is coming, it stopped the problem.

[danskibsted]

C+D: This sounds mysterious! Keep us updated, and lets hope it helps. How is your procedure when you graft on selenicereus? I have tried it some times with the same method as pereskiopsis, but it never seem to work

Simon: Thanks for the information, I have actually never thought of this before! This autumn I had some floating seedlings eventhough the pereskiopsis was dry, so maybe the weather was to blame. I will keep an eye out for that in the future.

Dan

[Carlo & Daniele]

will make the grafts soon!
for the moment we show you some other grafts from this winter:

echino horiz white spines:



a nice ario, sorry for the bad quality photo



discocactus petr-halfari



unlabelled onzuka crossing



hanazono

[danskibsted]

Good work! How old are they?

[Carlo & Daniele]

hello Dan! They are about 1 month and a half, the echinoc less.

[marazz53]

Hi C&D, Lovely plants. In my opinion, for only 1 and a half months for that Ariocarpus from seeds, is an excellent result... Congrats...

[danskibsted]

I agree with Mario, that is very good growth for at plant at that age. Keep us updated on the progress.
I will try to take some pictures of my wintergrafts this weekend.
Dan

[andrea.a]

I agree!! Nice plants, very nice and fast growing!

Sometime I have that problem of the stock making a drop of liquid after grafting.
And the strange thing is that it happens in different ways and results: last month in the same pot I had 4 peresks, all grafted in the same morning, 2 produced a drop of liquid around the sciones and 2 none at all, i did nothing and now they are all ok, now I cannot see which one was dry and which wet, in the same morning I grafted 12 other seedlings whith good results.
Some weeks before in another pot (only one one among 5) all the peresks produced a lot of liquid and I had to regraft the sciones, two died.
This morning I grafted 7 more seedlings, but this time I prepared the stocks differently: they were out of the hot and illuminated box for a week, maybe they are now a little more "quite", the surface of the cutting was less wet, and I used some "leaf glue" from peresk, as showed in modern.shaman's video.

Let's go on experimenting new methods, and let's share results! Too many different conditions around the world to have only one method!
Andrea.

[Carlo & Daniele]

Hello, we made some other grafts on the peresk with cut apex; in the same pot with 3 peresk two are ok and 1 made a drop of liquid, it's very strange...

[andrea.a]

Two days after grafting there is not any drop on the cuttings, and the sciones are perfectly turgid. When I used to keep Peresks in hot and illuminated box untill 1 hour before grafting, the sciones become a bit "dry", even if they were put in a high humidity condition. I suppose this drastic change in temperature and light conditions may have caused too stress in the stocks. Maybe with this one week rest before grafting the sciones will start growing faster.

Andrea.

[danskibsted]

Here is an update on some of the plants:









Retusus cv. multifinger x trefinger


Retusus cv. cauliflower:


Dan

[Carlo & Daniele]

Wow! nice forest! and the last one looks promising